Cooling issue on highway

72bluNblu said
The factory thermostat on all of these A-body cars was a 195*F. Look it up.
Click to expand...

Not quite. Out of curiosity, I looked it up. It seems to vary depending on the year.

Here's what the '66 Dodge FSM says:
upload_2022-7-9_8-10-26.png

upload_2022-7-9_8-11-28.png

'68 Plymouth FSM:
upload_2022-7-9_8-15-24.png

'69 Dodge FSM:
upload_2022-7-9_8-12-43.png

'73 Dodge FSM:
upload_2022-7-9_8-18-37.png